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Method and system for detecting passage of objects

An object and polarization direction technology, which is applied in the field of detecting the passage of objects and its system, can solve the problems of increasing the construction cost of the detection system and increasing the power loss of the detection system, and achieve the effect of reducing the construction cost and reducing the power loss of the system.

Inactive Publication Date: 2016-12-21
CHINA STEEL
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the above-mentioned optical detection method uses a considerable number of light-emitting and receiving elements, resulting in a significant increase in the construction cost of the detection system
In addition, a large number of light-emitting and receiving components will also greatly increase the power consumption of the detection system

Method used

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  • Method and system for detecting passage of objects
  • Method and system for detecting passage of objects
  • Method and system for detecting passage of objects

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Embodiment Construction

[0028] figure 1 A flowchart showing the method of detecting the passage of an object according to the present invention. figure 2 A schematic diagram showing the system of the present invention for detecting the passage of objects. Please refer to figure 1 Step S11 of and figure 2 , provide an object passing area a, the object passing area a is selected from one of the following: vehicle passage, production line and logistics area. In this embodiment, the object passing area a is a vehicle channel.

[0029] Please refer to figure 1 Step S12 of and figure 2 , a wireless identification reader (RFID reader) 10 is set on one side of the object passing area a, the wireless identification reader 10 has a first polarized antenna 11, and the first polarized antenna 11 can transmit A first polarized wave W1 passes through a metal part 21 of the object 20, and the metal part 21 can reflect the first polarized wave W1 and convert the first polarized wave W1 into a second polariz...

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Abstract

The invention relates to a method and system for detecting the passage of an object. The method includes the following steps: (a) providing an object passage area; (b) setting a wireless identification reader on one side of the object passage area. The wireless identification reader has a first polarized antenna. The first polarized antenna can transmit a first polarized wave to a metal part of a passing object. The metal part can reflect the first polarized wave and convert the first polarized wave. Converting the polarized wave into a second polarized wave with the opposite polarization direction; and (c) setting a wireless identification tag in the reflection direction of the first polarized wave, the wireless identification tag having a second polarized antenna, the The polarization direction of the second polarized antenna is opposite to the polarization direction of the first polarized antenna, so that the second polarized antenna can receive the second polarized wave and activate the wireless identification tag, thereby determining Object passes.

Description

technical field [0001] The present invention relates to an object detection method and its system, in particular to a method and its system for detecting the passage of an object. Background technique [0002] It is known that most of the methods for detecting the passage of objects are based on optical detection methods, such as the "method for detecting the passage of objects" disclosed in my country's Announcement Patent No. I242652, which uses a plurality of light-emitting elements and a plurality of receiving elements to form a detection system, and Interpretation of the passage of objects is performed using the light-interception method. However, the aforementioned optical detection method uses a considerable number of light-emitting and receiving elements, resulting in a significant increase in the construction cost of the detection system. In addition, a large number of light-emitting and receiving elements will also greatly increase the power consumption of the dete...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K7/00
Inventor 陈松琳林长春郭士纲谭玮
Owner CHINA STEEL
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